KANNAN, G. K.; SIMHA, U.; GAIKWAD, L.; L., N.; KUMAR, N. Bromo-butyl Rubber for Face Piece of a Respiratory Mask. Defence Science Journal, [S. l.], v. 59, n. 5, p. 505–511, 2009. DOI: 10.14429/dsj.59.1552. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/1552. Acesso em: 15 jun. 2025.